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Scalable multistage interconnection network architecture and method for performing in-service upgrade thereof

  • US 6,049,542 A
  • Filed: 12/31/1997
  • Issued: 04/11/2000
  • Est. Priority Date: 12/31/1997
  • Status: Expired due to Fees
First Claim
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1. A scalable switch fabric architecture comprising:

  • an input switching stage having N inputs and N outputs operable to connect selected ones of said N inputs to selected ones of said N outputs;

    an output switching stage having M inputs and M outputs operable to connect selected ones of said M inputs to selected ones of said M outputs;

    a multiplexer stage having a plurality of W-bit input channels and a W-bit output channel, wherein said output channel is coupled to said M inputs of said output switching stage; and

    a removable core switching stage having N inputs adapted for coupling to said N outputs of said input switching stage and having M outputs adapted for coupling to a first input channel of said multiplexer stage.

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